Preheat grill to medium-high heat. (gas grill turn on all burners, Charcoal: Spread coals into an even layer) If using wooden skewers, soak in warm water 20 minutes.

Combine garlic, ginger, and 2 Tbsp lime juice in a dish. Season with salt and pepper. Toss steak with marinade and mainate, 10 minutes.

Meanwhile, make dipping sauce: Whisk together hoisin sauce, ketchup, and remaining 2 Tbsp lime juice ina bowl. Season with salt and pepper.

Weave 1 skewer through each steak slice lengthwise, stretching slice on skewer to flatten. Season with salt.

Oil grill grate. Grill skewers to desired doneness, flipping once, about 2 minutes for medium-rare. Serve with dipping sauce, lime wedges, peanuts, and scallions.